维修手册4.ppt

按一下以編輯母片標題樣式,*,按一下以編輯母片,第二層,第三層,第四層,第五層,PE/FA,維修手冊,Repair manual,内容簡介,Content,abstract,對於短路板如何維修,。,How to repair short circuit board.,CPU,電壓異常如何維修。,How to repair CPU voltage problem board.,音效不良維修方法。,How to repair audio NG.,不通電幾種狀況維修方法,H,ow,to repair not electrify,網絡不良維修方法,How to repair network NG,.配件及配件接口不良,How to repair Fittings and connector NG.,復位信號動作過及與,clock,的關係,Relation of Reset signal and clock signal.,其它,Others,顯卡維修,VGA repairing,對於短路板如何維修,1.檢查主板的所有,AD,信號,包括（,CPU,座、,PCI、DIMM,槽、及,ISA,等）及其它的控制信號和時鐘蕊片各,時鐘輸出腳,.,所有的,I/O,接口信號其二極體是否正常。,/Check all AD signal on MB,including(CPU socket,PCI,DIMM slot and ISA,ect,.)other control signal and clock chip output pin,all IO connector signal and diode,see if they are OK.,2.,當被測信號二極體異常時,要根據其主板的架構,此信號所連接的零件,來快速而准確的判斷出某顆,零件不良,比如:,IDE,接口信號二極體異常,為南橋不良.,LPT,接口信號異常,為,I/O CHIP,不良.時鐘輸出腳二極 體異常,為時鐘蕊片不良。,When measured signal diode value is abnormal,according to MBs structure and connected parts of this signal,judge which part is NG quickly,Example:IDE connector signal abnormal,should SB NG,LPT connector signal abnormal,should I/O CHIP NG.Clock output Pin signal abnormal,clock chip NG.,CPU,電壓異常如何維修,1.,先查,CPU,電壓,電源管理芯片,及其,MOS,管,有無短路及燒壞現象,.,/First check CPU voltage,power manage chip,MOS,FET,see if there is short or burning phenomenon.,2.,查,VID0_VID4,信號電壓是否異常,.,/Check VID0_VID4 signal voltage is OK or NG.,3.,提供給電源管理芯片的,5,V,、,12V,電壓是否異常,.,Check Voltage(5V,12V)provided power manage chip is OK or NG.,4.,部分主板有,VID_GD,信號,查其是否異常,.,/,Some MB has a VID_GD signal,verify if,it is,OK,.,例,:,CPU,電壓過低,發現提供給,1164,芯片,(15,pin),12V,電壓異常查為供電電阻,10,歐不良,.,/Example:CPU voltage too low,after measuring,found voltage(12V)provided 1164 chip(15pin)is abnormal,resistance(10,)is NG.,音效不良維修方法,1.抓不住音效如何維修？,How to repair sound NG.,1.首先檢查24.5,M,晶振是否起振,如不起振再檢查供電5,V、3.3V,電壓是否正常,音效芯片的第1,pin.AC_RST,信號,3.3,V,電壓是否異常(注:某些主板在開機讀完內存才起振.),/First check whether crystal(24.5M)work,if not,check whether voltage(5V,3.3V)is normal,audio ship No.1 pin(AC_RST)signal is abnormal(PS:some MB,s crystal begin work after read memory),2.影響,AC-RST,信號異常的有五個信號(,AC_RST、C_BCLK、AC_SYNC、AC_SD10、AC_SD0).,這五個信號都是音效芯片與南橋相連，可通過測二極體的方法判斷。,/5 signals influencing AC-RST are AC_RST、C_BCLK、AC_SYNC、AC_SD10、AC_SD0,these 5 signals connect with SB,can be judged which is NG through measuring diode value.,3.當,AC_RST,信號正常,而24.5,M,晶振仍不起振,查晶振是否本體不良所連電容有無漏電及音效芯片本體不良.,/when AC_RST signal is OK,but crystal(24.5M)can,t work,you can check:,1.crystal self 2.connected capacitance 3.if,creepage,/leaking 4.audio chip,音效,TEST Fail,如何維修,How to repair audio test fail,1,檢查音效芯片周圍電容電壓,2.5,V,是否正常,如,2.5,V,電壓全被拉低,先檢查音效芯片,第,27,pin,的,VREF,信號電壓是否異常，如異常查與其相連的電容是否漏電。,Check whether capacitance voltage(2.5V)around audio chip is OK,if lower normal value,first need check audio chip,see whether twenty-seventh pin signal(VREF)is OK,if NG,then check whether related capacitance,creepage,.,2,音效測試,FAIL,一般有三項,:,Line in Test fail.CD in fail.MIC test fail.,通常是音效芯片至音效接口部分電路有異常,可排除南橋問題。,Audio test Fail,generally divide into 3 kinds:,Line in Test fail,.CD in fail.MIC test fail.Usually,there is problem on circuit between audio chip and audio connector,can,eliminate SB NG.,3,這三項都是從音效接口,通過一些電阻與偶和電容,輸入到音效芯片,根據測試,fail,結果去查,.,比如：,CD in fail,查,CD,接口到音效芯片之間有無異常,可參考線路圖。,These 3 items start from audio connector,via resistance and capacitance,input audio chip,you can check according to fail result.For example:CD in fail:you can check circuit between connector and audio chip have abnormity according to circuit diagram.,1,檢查從音效芯片輸出的,Line _out_L,Line_out_R,兩信號波形是否異常,此信號通過電容偶和，輸入到,TL072C（,功能芯片).經放大後,從音效接口,Line out,輸出,一般為,功放,芯片和音效芯片不良及電容漏電,.,Check whether Line _out _L,Line _out _R signal,waveform,is NG,these two signals through capacitance couple,input TL072C(functional chip),after enlarging,output from line out(Audio chip),generally,reason divide 3 kind:functional chip NG,audio chip NG,capacitance leaking.,2,若用耳機聽聲音正常,而用外置音箱有雜音,通常是,12,V,通過一個0,歐或,3.3,歐電阻供給外置音箱,.,電壓異常,一般為供電電阻不良.,/,Sound is OK while,l,istening by earphone,but,have noise by external sound box,Usually it is 12 V which supply external sound box via one 0,or 3.3,resistance.The voltage is unusual,generally,is,the resistance NG.,有雜音如何維修,How to repair noise,1.首先要知道哪種機種的音效是六聲道,凡是音效芯片是,CMI9739A,就會用六聲道治具來測,/First need know definition of 6 channel:MB which have CM,I9739A need be test using 6 channel fixture.,2,確認,LPT,是否,OK./Verify whether LPT is OK.,Line in FAIL,查,Line out,和,Line in,線路是否有問題,可通過測試時量測此線路的波形來判斷,/check,whether,Line out,and,Line in,circuit,is,NG,usually by measuring waveform while testing.,FR,FL FAIL,查,Line-out R.L,線路和相關元件是否正常,/check whether,Line-out R.L circuit and related component is OK.,RR,RL FAIL,查,SROUT R,SROUT L,相關線路和元件是否正常,/check whether circuit(related SROUTR,SROUT L)and component is OK.,CENTER FAIL,查音,效芯片第,43,pin,之,CEN-OUT,信號相關線路,/check audio chip 43rd pin signal(,CEN-OUT,)and related circuit.,LFE FAIL,查音效芯片第,44,pin,之,BASS,信號相關線路,/check audio chip 44th pin(BASS)and related circuit.,六聲道維修,Repair Six channel,SPDIF I/O,查音效芯片第,47,pin,48pin,之,SPDIFO,和,SPDIFI,信號相關線路,/,SPDIF I/O,:Check Audio chip,47,th,pin,and,48,th,pin,(SPDIFO,and,SPDIFI),signal,and related,circuit.,MIC FAIL,查,Line-out R,和,MIC-IN,MIC-IN2,信號相關線路和元件是否正常,/MIC FAIL:check Line-out R,MIC-IN,MIC-IN2 signal and related circuit and component is normal.,當,Line-in,不正常時,Line-in,和,FR,FL,MIC FAIL/,If,Line-in signal is abnormal,should L,i,ne-in,FR,FL,MIC F,ail.,CD-IN,不正常時只有,CENTER,和,LFE,可測過/,If,CD-IN,is abnormal,only,CENTER,and,LFE,can test pass.,六聲道維修,Repair Six channel,不通電幾種狀況維修方法,Methods,to repair not electrify,1.,不通電如何維修？,How to repair not electrify.,當按下電源開關後,檢查電源插座第,14,pin,的,power_on,信號是否動作,1.,power on,已動作,(,低電位,),證明主板電路已經動作,可能是主板電源供電部分電路有短路性故,障,而引起電源帶不起負載自動保護,而不通電,（通常電源燈會閃一下又滅了),可參考短路板之維修方法,.,When press the button of the power,supply,check whether the 14th pin signal(,Power_on,)work,1.The signal of,power_on,is already working with low voltage level,it express that the circuit of the mother board is already on working,it must be have some short with the part of the power supply,so it cause the power are not powerfully to drive the load and protect itself automatically,then the current can not pass on.(Usually the LED of the power will be flash once),2.,power on,未動作（高電位）,檢查電池電壓及,JBAT,插針電壓是否異常,32.768,k,晶振是否起振,查,627,供電是否正常,第,75,pin,的,susclk_in,是否振蕩,67,pin,之,psout,#,及,68,pin,之,psin,信號動作是否異常,.,查開關信號,pwrsw,至南橋之相關電路或,TTL,電路動作是否異常。查南橋輸出,SLP_S3#,信號至電源插座,14,pin,power_on,信號之相關電路，動作是否異常。,2.The signal of,power_on,didnt work(high voltage),check whether the voltage of the battery and the JBAT is ok or NG.Check whether the crystal(frequency:32.768KHz)is working,whether the voltage of 627 is ok,Whether the signal of the 75th pin(,susclk_in,),oscillate,whether the signal of the 67th pin(,psout,#)and the 68pin(,psin,)is working normally,whether the,cricuit,between the signal of,pwrsw,and the SB or the related TTL circuit is working,normally,.Check the circuit between the SB output signal(SLP_S3#)and the 14th pin on power plug and the related circuit with,power_on,see whether this part circuit can work normally.,2.,自動通電如何維修？,/How to repair MB electrify automatically,1.清楚,CMOS,資料看是正常,.,/1Check whether CMOS data is normally 2.,南橋輸出,SLP_S3#,信號到電源插座,14,pin,power_on,信號之相關電路元件燒壞或短路,導致,power_on,信號,直接被,拉低而自動通電。,/Check related circuit between signals of SLP S3#(send out from SB)and power on,see whether there is component burnt or short and will lead to the signal of power on pulled low and power on automatically.,3.,自動通電幾秒鐘後自動斷電？,/Power off automatically after electrify several seconds.,查從開關,PWRSW,信號至南橋之相關電路有無元件損壞或短路,及相,連之電容是否有漏電,導致,PWRSW,信號直被,拉低,.,/Check circuit from PWRSW signal to SB and see whether there is component burnt or short and whether connected capacitance is leaking.,網絡不良維修方法：,/How to repair network NG,1.,網絡抓不到如何維修？,/How to repair MB cant catching network.,1,檢查網絡芯片供電電壓是否正常,25,M,石英是否起振,.,/Check whether the voltage of,lan,chip is normally and quartz has oscillate,2,若,LAN CHIP(RTL8139,、,RTL8100),是使用,PCI,界面,故可用,PCI CARD,來判斷為,LAN CHIP,之問,題或,南橋之問題,.,/If,lan,chip(RTL8139,、,RTL8100)use PCI interface,you can judge,lan,chip problem or SB problem using PCI card.,3,若,LAN CHIP,為,82562,則檢查南橋至,LAN CHIP,直接相連的,8,個信號是否異常,.(,可用測二極體法,判斷,).,/If,lan,chip is 82562,you can check whether 8 signals from SB to,lan,chip are OK or NG.,2.,網絡測試,Fail,如何維修？,/,How to repair network test fail?,1,檢查網絡號碼是否正確,能否燒網絡號碼,.,/Check whether MB MAC is OK,whether MB can flash MAC.,2,若無法燒碼,查,EEPROM(93C46),之,USB,電壓是否正常,及,93,C46,之,DI,、,DO,、,8K,、,CS,之信號,是否正常,.,/If cant flash MAC,check whether USB voltage of EEPROM(93C46)is normal and whether,93,C46&DI&DO&8K&CS are normal.,3,若,LAN CHIP,為,82562,查,TDP,、,TDN,、,RDP,、,RDN,之信號是否正常,若,LAN CHIP,為,RTL8139,、,RTL8100,查,TXD+,、,TXD-,、,RXIN+,、,RXIN-之信號是否正常,.,/If,lan,chip is,82562,check,whether TDP,TDN,RDP,RDN signal are normal;If,lan,chip is RTL8139,、,RTL8100,check whether TXD+,TXD-,RXIN+,RXIN-signal are normal.,4,查以,LAN CHIP,至網絡接口之間連接的線圈是否不良,.,絡接口與地相連的,75,歐排陰是否正常及網絡接口內的彈片有無異常,.,/Check whether coil from,lan,chip to network connector is NG,whether resistor array(75)GND is normal,whether flip inside network is damaged.,復位信號動作過及與,clock,的關係？,/,The relationship of Reset Signal and Clock,629,628,PCI,AGP,BIOS,I/O,DIMM,槽,南橋,/SB,power ok,TTL,北橋,/NB,CPU,座,/socket,復位開關,/reset switch,32.768,clock,開機電源各組電壓穩定後,電源發出一個,power ok,信號,經過,TTL,電路,輸入到南橋(此部份電路不受,clock,影響).從南橋輸出的,PCIRST,分別連向北橋、,I/O、PCI,槽、,BIOS,等.再由北橋輸出,CPURST,至,CPU,座,若復輸出不正常,先檢查復位輸入是否正常,再查時鐘輸入是否正常,時鐘的輸入不正常會影響復位的輸出不正常.復位的輸入不正常會影響時鐘的輸出不正常及復位輸出不正常。,/,Power on,a,fter every voltage was stable,the power will send out a signal(,power ok,),through TTL circuit,input to south bridge(this part,circuit,dont be influenced by clock signals.)The signal of PCIRST output from SB connect to NB,、,I/O,、,PCI slot,、,bios and so on.Then NB will sent out the CPURST signal to the CPU,socket,.If the Output signal was abnormal,Please check whether the reset input signal is OK or NG,then check whether the input clock signal is OK or NG,because abnormal clock input signal will lead to output abnormal,Abnormal reset input will lead to clock output abnormal and reset output abnormal.,1,、,Key Board,無作用，,PSZ/MOUSE,無作用,.K/B is invalid,PSZ/MOUSE is invalid.,1.查,K/B,接口本體是否夾,pin,有無不良.,/Check K/B,2.,查,K/B,接口之,VCCGND、PIN,有無異常。,/Check whether VCC,GND,PIN is OK or NG.,3.查83627的第58,pin,KB LOCK#,信號，有無異常。,/Check whether the 58,th,pin signal(KB LOCK#)of 83697 is OK or NG.,4.查83627的第60,pin,KB RST,信號有無異常。,/Check whether the 60,th,signal(KB RST)of 83697 is OK or NG.,5.查,MSDATA、MSCLK、KBDATA、MSCLK、,信號、線路及相關之零件有無不良(通常 為電感撞,件或電容排容漏電等,).,/Check whether MSDATA,MSCLK,KBDATA,MSCLK,signal,cirsuit,and related component is NG.(Usually,Inductance collision,capacitance current leakage),2,、,COM1、COM2 TESE FAIL?,1.,查75232之+12,V or-12V or 5V,是否正常或所接之保護二極管是否不良.,/Check whether,+12,V,-12V,5V on,75232,is OK,whether protective diode is OK.,2.查南橋至,ISA,槽之,IRQ3(COM2)、IRQ4(COM1),之信號是否正確。,/Check signal IRQ3(COM2)、IRQ4(COM1)from SB to ISA slot is OK.,3.查,I/O CHIP,至75232和,COM1、COM2,接口至75232之線路是否,OPEN OR SHORT OR,零件不良.,/Check circuit from I/O chip to 75232 and from COM1,COM2 connector to 75232 is OK.,4.查,COM1、COM2,所接之電容或排容是否漏電.,/Check whether capacitance connected to COM1,COM2 is leakage.,3,、,LPT TEST FAIL?,1.,查南橋至,ISA,槽之,IPQ7,之信號是否正確.,/Check whether IPQ7 signal from SB to ISA OK.,2.查,I/O CHIP(627 OR 697),至,LPT,接口之線路是否異常.,/Check whether circuit from I/O chip to LPT is OK.,3.查,I/O CHIP(627 OR 697),所接口之電或排阻及(電容或排容)是否不良.,/Check resistance/capacitance connected to I/O chip is OK.,4、,USB TEST FAIL?,1.,查,USB CONNECTOR,所連接之,VCC GND,是否正常.,/Check VCC GND connected to USB CONNNECTOR is OK.,2.查,USB CONNECTOR,所接之,USB P0+、USB P0-、USB P1+、USB P1-,到南橋之線路是否,OPEN OR,SHORT./Check whether the circuit from USB P0+、USB P0-、USB P1+、USB P1-to SB is open or short.,3.,查,USB CONNECTOR,所連接之電阻,(,排阻,),、電感、排容,(,電容,),有無不良,.,/Check resistance,inductance,capacitance connected USB CONNECTOR is OK.,4.查,CLOCK CHIP,之48,MHZ,是否有輸出至南橋或頻率是否正確.,/Check whether 48MHZ output from clock chip to SB and freq.is OK.,5,、,GAME PORT TEST FAIL?,1.,查,GAME CONNECTOR,所連接之,VCC GND,是否正常.,/Check VCC GND connected GAME CONNECTOR is OK.,2.,查,I/O CHIP,至,GAME Connector,之線路是否,OPEN or SHORT,或零件不良.,/Check whether circuit from I/O chip to GAME connector is open or short or component NG.,3.,查,I/O CHIP,所連接的電阻,(,排阻,),、電容,(,排容,),是否不良或漏電,.,/Check R/C connected I/O chip is NG or leakage.,(注：特別注意電容(排容)的容量),.,6,.,HDD FAIL,維修方法：,How to repair HDD fail.,1.,清除,CMOS,看是否正常,。,/Cleaning CMOS,2.,查,HDD,接口是否缺,PIN,或不良。,/Check whether HDD connector is missing pin or NG.,3.,查南橋至,HDD,接口之,IRQ14(IDE)IRQ1(IDE2),及相關線路是否正常。,/Check whether signal,IRQ14(IDE)IRQ1(IDE2)from SB to HDD connector and related circuit is OK.,4.,查南橋至,HDD,間所連接之電阻，排阻線路是否正常。,/Check resistor/resistor array from SB to HDD is OK.,5.,查,HDRESET,之動作是否正常。,/Check whether HDRESET can work normally.,6.,FDD,不讀,A,和讀,A,當維修方法。,/Repair method for FDD cant read A.,1,.,清除,CMOS,看其是否正常,。,/,2.,查南橋,(,I/O),至,FLOPPY CONNECTOR,之信號及線路有無異常,.,/Check whether signal and circuit from I/O to FLOPPY CONNECTOR is OK.,3.,查,ISA SLOT,之相關信號動作是否正確,/Check whether signal related to ISA SLOT is correct.,如,:,DRVREST/AEN/TC/IRQ6/DRQ2/DACK2,等,.,/For example,DRVREST/AEN/TC/IRQ6/DRQ2/DACK2 and so on.,4.,查,CLOOK CHIP,輸出到南橋,(,I/O),各路時鐘是否正常,.,/Check whether every clock from CLOCK CHIP to SB is OK.,5.,進,COMS,將,External cache,及,Internal cache,改為,Disable,查看能否正常,讀,A,若能正常,讀,A,則為,External cache,及,Internal cache,之問題。,/Log in CMOS,change,External cache and Internal cache to disable,if read A,it is External cache and Internal cache to disable problem.,7.HDD FAIL,維修方法,/How to repair HDD fail,清除,CMOS,看是否正常,。,/,查,HDD,接口是否缺,PIN,或不良。,/Check whether HDD connector is missing PIN or NG.,查南橋至,HDD,接口之,IRQ14(IDE)IRQ15(IDE2),及相關線路是否正常。,/Check whether signal,IRQ14(IDE)IRQ15(IDE2)and related circuit from SB to HDD is OK.,查南橋至,HDD,間所連接之電阻，排阻線路是否正常。,/Check whether resistance/resistance array from SB to HDD is OK.,查,HDRESET,之動作是否正常。,/Check whether HDRESET is OK.,8.挑,CPU,如何維修？,How to repair MB which choosing CPU.,根據兩種,CPU,的不同點可分為：,/According to CPU character difference,d,1.,CPU,電壓不同：檢查,CPU,電壓是否正常及決定,CPU,電壓大小的,VID0-VID4,是正常 及其,CPU,痤,有無擴孔現象.,/1CPU voltage is different:check whether CPU voltage is OK,whether VID0-VID4 which decide CPU voltage is OK,whether CPU socket is hole-extend.,2.外頻不同：檢查決定,CPU,外頻的,FS0-FS3,信號,是否異常.此信號通過電阻電容與南橋及,CPU,連,查相關線路及元件是否異常。,/Front side bus is different:check whether FS0-FS3 signal which decide CPU FSB is OK.This signal connect to SB and CPU via R/C,check whether related circuit and component is OK.,其它,Other,Hard monitor,功能,/Hard monitor function,1.作用：能夠實時的檢查計算機中硬件的工作狀況,監測,CPU,和系統溫度,風扇轉速,系統電壓用,戶可以在,BIOS,設定菜單中查看到這些信息,.,/1Function:check hardware working state real-time,monitor CPU and system temperature,fan rotate speed,use can understand these information in BIOS setup,manu,.,2.檢修：,/Repair process,1)首先檢查電壓、溫度及風扇轉速的實際狀況是否正常，,比如真實電壓是否正常,。,從而判斷是否為監,測電路有問題。,/Firstly,check whether voltage,temperature and fan rotate speed is OK.,So can judge whether monitoring circuit is NG.,2)若真實電壓異常,則查電源供電電路,若真實風扇轉還偏低,則查風扇供電電路12,V,是否異常等。,/If real vol